Home / 5,441.90-8,163.13-1,979.02

Finding the Fourth Proportional to 5,441.90, 8,163.13 and 1,979.02

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Solution

The fourth proportional to 5,441.90, 8,163.13 and 1,979.02 is: 2,968.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,441.90 : 8,163.13 = 1,979.02 : x
  2. Step 2: Convert to fraction form
    5,441.90/8,163.13 = 1,979.02/x
  3. Step 3: Cross multiply
    5,441.90x = 8,163.13 × 1,979.02
  4. Step 4: Simplify right side
    5,441.90x = 16,154,997.53
  5. Step 5: Solve for x
    x = 16,154,997.53/5,441.90
  6. Step 6: Final answer
    x = 2,968.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.